Healthy volunteers inhale flu virus for science

NCT ID NCT06972810

Completed Knowledge-focused Sponsor: University of Melbourne Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This completed study gave 11 healthy adults a specially made H3N2 flu virus via nasal spray to see how their immune systems reacted. Participants were quarantined for at least 8 days in a hospital-like setting. The goal was to learn more about flu infection and immune response, not to test a treatment.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: A/Texas/71/2017, clade 3C3a H3N2 influenza virus (a lab-made flu virus given as a nasal spray)
What this could lead to: If successful, this study could help researchers better understand how flu spreads and how the immune system fights it, which may improve future vaccines and treatments.
What could go wrong: This is a very small, early-stage study with only 11 people, so results may not apply to everyone. The virus is expected to cause mild to moderate flu symptoms, but there is a risk of more severe reactions.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

influenza

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

INFLUENZA

Contacts and locations

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Locations

Doherty Clinical Trials

Melbourne, Victoria, 3002, Australia

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